having regulation of screen potential at cathode potential, e.g. orthicon

Full Title

Cathode ray tubes; Electron beam tubes (H01J25/00, H01J33/00, H01J35/00, H01J37/00 take precedence; details of cathode ray tubes or of electron beam tubes H01J29/00) > having a screen on or from which an image or pattern is formed, picked up, converted, or stored > Image pick-up tubes having an input of visible light and electric output (tubes without defined electron beams and having a light ray scanning photo-emissive screen H01J40/20) > with electron ray scanning the image screen > having regulation of screen potential at cathode potential, e.g. orthicon

Child Classifications

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• H01J 31/36 Tubes with image amplification section, e.g. image-orthicon
• H01J 31/38 Tubes with photoconductive screen, e.g. vidicon